FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
Phillips Joshua
  2. Issuer Name and Ticker or Trading Symbol
SERA PROGNOSTICS, INC. [SERA] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
C/O SERA PROGNOSTICS, INC., 2749 EAST PARLEYS WAY, SUITE 200		 3. Date of Earliest Transaction (Month/Day/Year)
06/03/2024
(Street)

SALT LAKE CITY, UT 84109		 4. If Amendment, Date Original Filed (Month/Day/Year)
 6. Individual or Joint/Group Filing (Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8) 		4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4) 		6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4) 		7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Class A Common Stock 06/03/2024   J(1)   381,869 D $ 0 6,753 I Held by Catalyst Health Ventures, L.P. (2)
Class A Common Stock 06/03/2024   J(3)   156,332 D $ 0 9,766 I Held by Catalyst Health Ventures (PF), L.P. (2)
Class A Common Stock 06/03/2024   J(4)   1,473 A $ 0 29,258 (5) D  
Class A Common Stock 06/03/2024   J(6)   356,660 D $ 0 17,684 I Held by CHV Investments, LLC (2)
Class A Common Stock 06/03/2024   J(7)   2,297 A $ 0 2,297 I Held by Trust (8)
Class A Common Stock 06/03/2024   J(7)   5,034 A $ 0 34,292 D  
Class A Common Stock 06/03/2024   J(9)   36,040 D $ 0 8 I Held by Catalyst Health Ventures Follow-on Fund, L.P. (2)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8) 		5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5) 		6. Date Exercisable and Expiration Date
(Month/Day/Year) 		7. Title and Amount of Underlying Securities
(Instr. 3 and 4) 		8. Price of Derivative Security
(Instr. 5) 		9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4) 		10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4) 		11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Phillips Joshua
C/O SERA PROGNOSTICS, INC.
2749 EAST PARLEYS WAY, SUITE 200
SALT LAKE CITY, UT 84109		   X      

Signatures

 /s/ Benjamin G. Jackson, Attorney-in-fact   06/05/2024
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Catalyst Health Ventures, L.P. ("CHV LP") distributed these shares to its limited partners on a pro rata basis, for no consideration.
(2) CHV GP LLC is the general partner of CHV LP and Catalyst Health Ventures (PF), L.P. ("CHV PF"). CHV I GP LLC (formerly known as "CHV III GP LLC") is the general partner of CHV Investments LLC ("CHV Investments") and Catalyst Health Ventures Follow-on Fund, L.P. ("CHV FO", together with CHV LP, CHV PF and CHV Investments, the "CHV Funds"). Joshua Phillips, a member of the Issuer's board of directors, is a managing member of CHV GP LLC and CHV I GP LLC, and a limited partner of CHV PF, CHV Investments, CHV GP LLC, and CHV I GP LLC. The securities held by the CHV Funds may be deemed to be beneficially owned by Joshua Phillips. Joshua Phillips disclaims beneficial ownership of these securities except to the extent of his pecuniary benefit therein.
(3) CHV PF distributed these shares to its limited partners on a pro rata basis, for no consideration.
(4) Represents the pro-rata distribution from CHV PF, and not a purchase or sale, without additional consideration.
(5) Includes 25,815 shares received as a pro-rata distribution from CHV LP and 1,970 shares received as a pro-rata distribution from CHV PF. In prior reports, the reporting person reported beneficial ownership of 388,622 shares held directly by CHV LP and 166,098 shares held directly by CHV PF.
(6) CHV Investments distributed these shares to its limited members on a pro rata basis, for no consideration.
(7) Represents the pro-rata distribution from CHV Investments, and not a purchase or sale, without additional consideration.
(8) The shares are held by a living trust, of which the reporting person is a trustee and in which the reporting person has a beneficial interest.
(9) CHV FO distributed these shares to its limited partners on a pro rata basis, for no consideration.

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